Valve closure for bottles and the like



Nov. 17, 1964 3,157,323

G. L. KITTERMAN VALVE CLOSURE FOR BOTTLES AND THE LIKE Filed April 12,1961 5 Sheets-Sheet 1 as f 34 5 b 9 INVENTOR. 64:. IZY L KI E MANATTORNEYS Nov. 17, 1964 G. L. KITTERMAN VALVE CLOSURE FOR BOTTLES Am;THE LIKE I Filed April 12. 1961 3 Sheets-Sheet 2 [NV FJV TOR.

N ,m A E w WM E 0 T T W T K M? L w 6w Nov. 17, 1964 G. KITTERMAN3,157,323

VALVE CLOSURE FOR BOTTLES AND THE LIKE Filed April 12, 1961 3Sheets-Sheet 3 INV EN TOR.

6A L. ){I EQMAN BY United States Patent 3,157,323 VALVE CLOSURE FGRBGTELES AND THE LIKE Gary L. Kitterman, National Products (30., 61%Wilson Ave, Kansas Qty, Kane. Filed Apr. 12, 1961, cm. No. 102,530 9Claims. (Cl. ZZZ- 520) This invention relates to containers for fiowablematerials such as fluids, powders and the like, and more particularly todispensing closures for containers such as bottles and the like with amovable valve member for controlling the dispensing of the contents.

The principal objects of the present invention are to provide acontainer with a dispensing closure structure having a valve member forsealing the container against leakage of contents and with said valvemember being movable to form a discharge channel for the contents of thecontainer; to provide a dispensing valve structure wherein the valvecasing is a part of the container and is formed during the manufacturethereof as by molding; to provide such a structure wherein the valvecasing is integral with the container and valve engaging portions formedby a core in the molding thereof; to provide such a structure with anelongate tubular portion and a valve member movable therein with one ofsaid members being of resilient material with mating surfacesresiliently engaged to prevent leakage when the valve member is inclosed position; to provide a closure structure wherein the containerincludes an elongate portion having a through passage and a valve memberin said passage with mating portions for sealing and ports in said valvemember positioned for selective flow therethrough in dispensing ofmaterial from the container; to provide such a structure wherein thecontainer or valve casing portion thereof is molded of flexibleresilient material with the discharge passage having moldedvalve-engaging shoulders and surfaces thereof; to provide such astructure wherein the discharge passage containing portion is on a capor the like adapted to be removably secured on a container; to provide adispensing valve structure wherein the valve member includes a headportion exteriorly of the container and has a channel extending fromsaid head portion and through the shank to an opening communicating withan enlarged portion of the valve mounting passage with portions of thevalve member arranged whereby movement thereof to open position forms achannel communicating with the interior of the container; to providesuch a structure wherein the container has an elongated body with athrough bore in which the valve member is mounted wherein said bodyportion has a reduced section defining a cylindrical bore adjacent theinner end adapted to have resilient or interference sealing engagementwith a cylindrical portion of the valve member in closed position; andto provide a dispensing closure having only two relatively movable partsto form the control of the dispensing of the contents of the container,and that is economical to manufacture, and is simple yet positive andefficient in operation.

Other objects and advantages of this invention will become apparent fromthe following description taken in connection with accompanying drawingswherein are set forth by way of illustration and example certainembodiments of this invention.

FIG. 1 is a perspective view of a container having a closure embodyingthe features of the present invention.

FIG. 2 is a partial elevational view of the closure with the valve inopen or dispensing position, the container being broken away toillustrate the relationship of the parts.

FIG. 3 is apartial perspective view of the container and closure withthe closure valve in closed position, with portions broken away toillustrate the structure thereof.

FIG. 4 is a partial perspective view of a container and modified form ofclosure with portions broken away to illustrate the structure thereof,the valve being in open position.

FIG. 5 is an elevational view of the container closure illustrated inFIG. 4 with the valve shown in closed position and portions broken awayto illustrate the structure thereof.

FIG. 6 is a partial perspective view of another modified form ofcontainer and closure with the valve in closed position and portionsbroken away to illustrate the structure thereof.

FIG. 7 is an elevational view of a container and closure illustrated inFIG. 6 with the valve in open position and portions broken away toillustrate the structure thereof.

FIG. 8 is a partial perspective view of another modified form ofcontainer and closure with the valve in open position and portionsbroken away to illustrate the structure thereof.

FIG. 9 is an elevational view of the closure structure illustrated inFIG. 8 with the valve in closed position and with portions broken awayto illustrate the relative location of parts thereof.

FIG. 10 is a partial perspective view of still another modified form ofcontainer and closure with the valve in closed position and portionsbroken away to illustrate the structure thereof.

FIG. 11 is an elevational view of the closure structure illustrated inFIG. 10 with the valve in open position and with portions broken away toillustrate the relationship of the parts thereof.

FIG. 12 is a transverse sectional view through the closure structuretaken on the line ll212, FIG. 11.

FIG. 13 is a transverse sectional view through the closure structuretaken on the line 13l3, FIG. 10.

FIG. 14 is an enlarged detail sectional view of the upper portion of thevalve casing and valve member illustrating the sealing engagementtherebetween.

Referring more in detail to thedrawings: I

This invention contemplates a structure wherein a dispensing valve isarranged to control discharge of flowable materials such as fluid,liquid, liquid and solid suspensions and like contents from a containerand the casing of the valve serves as one end of the container. Theinvention further contemplates such a structure wherein the valve casingforms a valve-receiving receptacle in which a valve member is movablymounted and the surfaces of the receptacle engaged by the valve memberare formed by a core or the like in the making of the valve casing andcontainer by molding or the like. The invention further contemplates avalve structure wherein the casing and/ or valve member are molded offlexible resilient material such as suitable synthetic resins, forexample, polyvinylchloride, polyethylene, polypropylene and otherflexible plastics, wherein a resilient engagement between a cylindricalshank or portion of the valve member and a cylindrical bore provides apositive seal to prevent leakage of contents from the container when thevalve member is in closed position. The invention further contemplatessuch a structure wherein movement-limiting shoulders on the valve memberand casing are formed in the molding operation to limit movement of thevalve member from open to closed position and retain the valve memberassembled in the valve casing.

The reference numeral 1 generally designates a container in the form ofa bottle or the like and having walls 2 defining a chamber 3 therein forcontaining material In the structure, as illustrated in FIGS. 1 to 3inthrough preferably of a size whereby the bottle or container may befilled through said passage. The container is preferably molded or blownin a conventional manner of a suitable synthetic resin, preferably of aflexible and resilient nature, and the passage 8 formed by a rigid corewhich may be withdrawn outwardly longitudinally of the valve casing. Inthe structure illustrated, the valve casing or body has an inner endportion 9 with a'cylindrical bore 10 extending therein axially of thecasing 5, and the outer end portion 11 has a coaxial cylindrical bore 12extending therein. The body is provided with a counterbore 13 forming anenlarged portion which cooperates with the bores 10 and 12 to form thepassage 8 and to define shoulders 14 and 15 respectively spaced from theinner and outer ends of the valve casing and providing the innerterminuses of the sealing bores 10 and 12. It is preferable that thebore 12 be larger than the bore 10 but smaller than the counter bore 13whereby the shoulder 15 is of lesser width than the shoulder 14, saidshoulder 15 being such that a passage forming core may be pulled fromthe passage due to the resiliency of the material in the valve casingwithout damage to the surfaces of the shoulders or bores.

The valve 4 has the valve casing 5 and a valve member 6 so arranged thatthe two parts form the operating structure of the dispensing valve. Inthe structure illustrated, the valve member 6 has a head 16 adapted tobe arranged exteriorly of the container and at one end of a valve shank17 which includes a cylindrical portion 18 extending from the head andof suitable size to form a sliding tight fit in the bore 12 wherebythere is compression type seal between the surfaces of the bore 12 andthe cylindrical portion 18 to form a seal therebetween. The shank has anenlarged portion or collar 19 preferably of a size to form a snugsliding fit in the counterbore 13 and to provide a shoulder 20 adaptedto engage the shoulder 15 in the valve casing to limit the outwardmovement of the valve member relative to the casing, as illustrated inFIG. 2. The spacing between the collar shoulder 2t and the adjacent end21 of the head cooperates with the length of the bore 12 to control thelimit of movement of the valve member, the end 21 engaging the end 11 ofthe valve casing to limit the inward movement of the valve memberrelative to the casing. The valve shank converges inwardly from thecollar 19 to a cylindrical portion 22 extending therefrom oppositelyfrom the head, said cylindrical portion preferably being slightly largerthan the bore 10 whereby when the cylindrical portion is positioned inthe bore there is a tight resilient engagement of that portion of thevalve casing with the cylindrical portion 22 to form a fluid-tight sealthere between. The cylindrical portion 22 extends inwardly whereby whenthe valve member is positioned in closing position with the end 21 ofthe head engaging the end of the valve casing, as illustrated in FIG. 3,the inner end 23 of said cylindrical portion 22 is adjacent the innerend 9 of the valve casing. The portion of the shank extending from theend 23 of the cylindrical portion 22 is slotted or otherwise formed withopenings or channels 24 providing communication from the chamber 3 ofthe container to the counterbore 13 when the valve member 6 is in openposition, as illustrated in FIG. 2. In the structure illustrated, thelower portion of the valve stem is cut away to form spaced ribs or vanes25 which provide guides engaging the bore 10 when the valve is in openposition and are preferably of such length whereby the inner ends 26 ofthe vanes are at the inner end 9 of the valve casing or inwardly of thecontainer, as illustrated in FIG. 2. The valve member is provided with aport 27 extending radially or laterally therethrough and communicatingwith the counterbore 13 in all positions of the valve member, said portproviding communication with a bore 28 extending from a closed end 29outwardly to form a discharge passage.

With the parts constructed as described, the valve memher 6 is insertedin the valve casing 5 by inserting the vaned end into the bore 12 andmoving the valve member inwardly toward the chamber 3 until the collar19 passes into the counterbore 13. The valve is then ready foroperation. When in open position, the contents of the container may flowthrough the channels 24 between the vanes 25 through the bore 10 intothe counterbore 13 through the port 27 and into the bore or dischargepassage 2S. Escape of contents around the valve member is prevented bythe resilient engagement of the collar 19 with the inner surface of thecounterbore 13 and the engagement of the shoulder 20 with the shoulder15 and the cylindrical portion 18 with the surface of the bore 12. Whenit is desired to close the container to seal the contents therein, thevalve member is pushed inwardly to the position illustrated in FIG. 3wherein the cylindrical portion 22 between the port 27 and the end 23 isengaged with the bore 10 to form a fluid-tight interference seal,preventing any flow of fluid from the container. This structure providesa very efiicient valve and container of a minimum of parts that iseasily manufactured with relative sizes to provide a positive resilientseal of the valve parts.

In the form of the invention illustrated in FIGS. 4 and 5, thedispensing valve 30 includes a valve member 31 and a valve casing 32,the valve casing being on a container 33. The valve casing may be on orconnected with the container in any suitable manner, and, in theillustrated structure, the container has a wall 34 defining a chamber 35with an opening 36 leading from the chamber through an upstanding neck37. The neck has external screw threads 38 adapted to be engaged byinternal threads 39 on a cap-like structure 4%: which has an end wall 41with the valve casing 32 integral therewith. sealed position, the upperfiat surface 42 of the neck engages a depending rib 43 on the cap and asecond rib 44 concentric therewith and spaced inwardly therefrom has aninclined surface 45 that is moved into tight engagement with the edge 46at the outer end of the opening 36 to form a Wedge type interferenceseal between the cap and bottle. The valve casing 32 is generallyupstanding from the wall 41 of the cap or container and has an innerbore 47 coaxial with an outer bore 48 with a counterbore 49 therebetweenwhereby the ends of the counterbore terminate in spaced relation to theinner end 50 and outer end 51 of the valve casing, and form shoulders 52and 53 respectively. The bore 48 is larger than the bore 47 but smallerthan the counterbore 49 whereby the shoulder 53 is narrower than theshoulder 52, the shoulder 53 being such that a core forming the bores47, 48 and counterbore 49 may be pulled therefrom without damaging thesurfaces formed thereby. The valve member 31 preferably includes acylindrical shank 54 tightly sleeved in the bore 48 and having a collar55 slidably received in the counterbore 49, the collar forming ashoulder 56 adapted to engage the shoul der 53 when the valve member ismoved to its outermost position. The collar portion converges inwardlyto a cylindrical valve portion 57 which extends through the bore 47 whenthe shoulder 56 engages the shoulder 53, the cylindrical portion 57being a tight sliding fit in the bore 47 to provide resilient engagementand seal. The length of the counterbore 49 may be such relative to thecollar 55 whereby the lower end of the collar will engage the shoulder52 to limit inward movement of the valve, if desired. At such innermostposition, a port 58 extending laterally into the cylindrical portion 57is positioned inwardly of the end 50 of the valve casing to providecommunication with the interior of the container, said port intersectingan axial bore 59 extending from a closed end 60 outwardly to the outerend of the shank to provide a discharge passage for the contents of thecontainer. In the structure illustrated, a head 61 is mounted on theouter end of the When the cap is threaded onto the neck to ashank andprovided with a laterally directed spent 62 having a bore 63communicating with the bore 59 whereby the contents of the container maybe discharged through the nozzle. It is preferred that the head bespaced from the collar 55 whereby the end surface as of the head willengage the end 51 of the valve casing when the valve member is in openposition as illustrated in FIG. 4. When the valve member is movedoutwardly relative to the container to engage the shoulder 56 with theshoulder 53, the port 58 is moved into the valve casing to register withthe counterbore 49 whereby the lower smooth end of the cylindricalportion 57 is positioned in the bore 54) and engaged therewith to form aseal to prevent leakage or discharge of the contents of the containerthrough the valve assembly. When the parts are molded to provide theshapes described, the valve member is assembled in the valve casing byinserting the cylindrical end 57 into the bore 18 and pushing downwardlyon the valve member to position the collar 55 in the counterbore 4-9.The valve assembly is then ready for operation.

In the form of the invention illustrated in FIGS. 6 and 7, thedispensing valve generally consists of a valve member 65 and a valvecasing 66 and, in the illustrated structure, said valve casing isintegral with the walls 67 of the container having a chamber 68 therein.In this form of the invention, the structure is similar to thatillustrated and described in FIGS. 1 to 3 inclusive, with the additionalprovision of shoulders or lugs 69 on the vanes or ribs 70 that extendinwardly into the chamber 68 whereby said lugs engage the inner end 71of the valve casing to limit outward movement of the valve member 65relative to said casing. The end 72 of the head 73 is adapted to bemoved tightly into engagement with the end surface 74 of the valvecasing to form a seal therewith when the valve member is moved to closedposition, as illustrated in FIG. 6. This also provides a stop to limitinward movement of the valve member relative to the valve casing. In theclosed position, the cylindrical portion 75 of the shank is positionedin the bore 76 at the inner end of the valve casing toward the chamber63 and has a resilient engagement therebetween to form a seal. The port77 exten ing laterally in the shank is above the bore 76 to providecommunication between the counterbore 78 in the valve casing and adischarge bore 79 extending from a closed end 86 outwardly through theend of the head to provide a discharge passage or channel when the valvemember is moved to open position, as illustrated in FIG. 7, whereinfluid can flow from the chamber 68' between the ribs 76 through the bore76, counterbore 78, port '77 and bore 79. Movement of the valve member65 relative to the casing 66 is positively effected by screw threads,the shank 81 of the valve member having exernal screw threads 82threadedly engaged with internal screw threads or grooves 33 in thecounterbore '78. In the illustrated structure, the helical means orscrew threads 82, and 83 are of double lead type whereby full movementof the valve member from open to closed position will be effected byrelatively few turns. Also, the screw threads and grooves preferablyhave a resilient engagement to form a relatively tight sealing contactto prevent leakage, but said sealing contact is of a light interferencetype whereby the parts may be moved with ease while maintaining theseal. While this engagement contributes to the seal when the valvemember is in closed position, the engagement between the cylindricalshank portion 75 and the bore 76 provides a positive seal when the valveis in closed position.

In the form of the invention illustrated in FIGS. 8 and 9, thedispensing valve 85 includes a valve member 86 and a valve casing 87 atone end of a container 83. The connection of the casing 87 to thecontainer 88 may be in any suitable manner; however, in the illustratedstructure, the casing is a part of a cap 89 secured to the 6 container88 in sealing relation thereto substantially in the same manner as thecap member 40 is secured to the container 33 inthe form of the inventionillustrated in FIG. 4, whereby the inner end of a passage 91 in thevalve casing is in communication with the chamber 91 in the container.Also, the particular structure of the valve casing 87 and the passagetherethrough are substantially the same as the valve casing 66 in theform of the invention illustrated in FIGS. 6 and 7. The valve member 86has threads 92 that engage in internal threads or grooves 93 wherebyrotation of the valve member 86 moves same longitudinally relative tothe valve casing. The valve member 86 also has a head 94 and alongitudinal bore or passage 95 opening from the outer end 96 andextending inwardly and terminating in a closed end 97. The bore 95 hascommunication through a port 98 with the passage or bore 90 in the valvecasing, said port being located in a reduced diameter portion 99 of thevalve shank which extends from the threaded portion of theshank. Thereduced portion 99 is preferably approximately the same size as thecylindrical sealing portion 109 and adapted to be positioned in thecylindrical bore 101 at the lower or inner end of the valve casing whenthe valve is in closed position. In this structure, the valve is inclosed position when the valve member is moved outwardly relative to thevalve casing, as illustrated in FIG. 9, and to limit the outwardmovement a collar 102 at the inner end of the cylindrical portionengages the inner end surface 163 of the valve casing. It is preferablethat the inner end of the valve member below the collar be of reducedarea, and in the illustrated structure, it converges inwardly forming asubstantially frusto-conical end 164%. When the valve member is moved toopen position, as illustrated in FIG. 8, the cylindrical portion 1911 ismoved inwardly into the chamber 91 with the upper or outer portion ofsaid cylindrical part spaced below the end 163. In such open position,communication from the chamber 91 to the passage 99 is provided bychannels or passagesltle", said channels being formed by cutting awaythe valve shank to form spaced ribs 106 that extend from the reducedportion 99 to the cylindrical portion 1th) of the valve member. In thisstructure, the collar 102. engaging the end M53 or" the valve casing andthe resilient engagement between the casing at the bore 1M and thecylindrical portion 100 of the valve member provides a positiveresilient seal engagement to prevent leakage of the contents of thecontainer chamber 91.

When the valve is moved to open position, there is positive engagementbetween the end 107 of the head 94 and the outer end 108 of the valvecasing and also a snug fit between the threaded shank and threaded boreor passage 90 to provide a seal whereby flow of the contents of thecontainer through the channels to the passage 9t) moves through the port98 andbore 95 in dispensing operations. In this closure structure, thevalve parts may be molded of synthetic resin and all surfaces formed inthe molding process, and the assembly of the parts is by merelyinserting the valve member into the passage 941 and moving the inner endof the valve member therethrough with the resiliency of the materialpermitting the collar 102 to pass through the bore 100 to the positionshown in FIG. 9 and thereafter said shoulder forms a stop to resistseparation.

In the form of the invention illustrated in FIGS. 10 to 14 inclusive,the dispensing valve 110 includes a valve member 111 which cooperateswith a valve casing 112 that is secured on a container 113 having achamber 114 therein. In the structure illustrated, the valve casing 112is integral with an end member 115 of the container which, in theparticular structure shown, is removably secured to a neck 116 of thecontainer by a threaded connection and seals that are substantially thesame structure for securing the member 40 on the container 33 in thestructure illustrated in FIG. 4. The valve casing 112 has a longitudinalbore 117 adjacent its inner end 118 and a counterbore 119 extends from ashoulder 120 toward the outer end 121 where is opens as at 122. Thecounterbore is preferably tapered or converging toward the outer end oropening 122 whereby said opening is of reduced cross section for asealing action as later described. The inner end 118 of the valve casingis preferably provided with flow openings or channels 123 extendingradially therethrough for facilitating flow of the contents of thecontainer chamber 114 through the valve assembly, as later described.The valve member 111 has a cylindrical portion 124 with a ribbed area125 extending therefrom and terminating in a collar 126 and conical end127 that is similar in structure to the inner end portion of the valvemember 65 illustrated in FIGS. 6 and 7 with the exception that thecollar and end 127 are made solid, whereby said collar 126 is adapted toengage the end 118 of the valve casing to form a stop to prevent orresist removal of the valve member from the valve casing.

The valve member 111 has a shank portion 128 extending from the outerend of the cylindrical portion 124, said shank terminating in a head 129having an end 130 adapted to engage the end 121 of the valve casing toform a limit of inward movement when the valve. member is in valveclosing position, as illustrated in FIG. 10, wherein the cylindricalportion 124 is positioned in the bore 117 and is resiliently engaged toform a seal, said seal portion being inwardly of a port 131 that extendslaterally inwardly in the cylindrical portion to communicate with a bore132 that extends from a closed end 133 to an opening 134 at the outer.end of the head 129. The shank portion 128 has a plurality of spacedcircumferential ribs 135 adjacent the port 131 with the outer orperipheral edges of the ribs being adapted to engage the surface of thecounterbore 119 in the inner portion thereof as when the valve member isin closed position, as illustrated in FIG. 10, at which position theouter end portion 121 of the valve casing, due to the taperedcounterbore, engages the shank portion 128 which preferably iscylindrical to have a resilient lip engagement providing an interferenceseal at the outer end of the counterbore, FIG. 14.

When the valve member is moved to open position, the collar 126 engagesthe end 118 of the valve casing and the contents will flow through theopenings 123 in the ribbed area 125 and to the counterbore 119 throughthe port 131 and out of the opening 134. In this position, the valvemember is moved to the position illustrated in FIG. 11 wherein the ribs135 engage the tapered portion of the counterbore to form furtherinterference resilient type seals to prevent any escape of contentsthrough the valve casing whereby all of the contents must pass throughthe port 131 and out the bore and opening 134. This structure provides apositive seal in all positions of the valve assembly, and all parts maybe easily molded whereby the structure can be economically manufacturedand assembled.

It is to be understood that while I have illustrated and describedcertain forms of my invention, it is not to be limited to the specificforms or arrangements of the parts herein described and shown exceptinsofar as such limitations are included in the claims.

What I claim and desire to secure by Letters Patent is:

1. A dispensing valve structure for containers comprising, an elongatevalve casing adapted to be positioned with one end in communication witha chamber adapted to contain flowable materials, said valve casinghaving a through passage extending longitudinally thereof, said valvecasing having a portion adjacent said one end defining a cylindricalopening forming a portion of said passage, said passage having anenlarged portion extending from said cylindrical opening toward theother end of said valve casing, said valve casing at said other endextending inwardly relative to said passage to provide a reduced areathereof, an elongate valve member having a shank extending through saidpassage, said valve member having a bore opening exteriorly of saidvalve casing and extending longitudinally through the shank andterminating in a closed end spaced from the opposite end of the shank, aport in said shank below the upper end of the valve casing and openinginto said bore, said shank having a reduced portion adjacent saidopposite end with a cylindrical portion between the port and saidopposite end being of a size to engage in the cylindrical portion of thepassage and form a resilient compression seal with the valve casing,stop means on the valve member and valve casing below the upper end ofthe valve casing and adapted to be engaged in response to relativelongitudinal movement thereof to limit said movement, said port in thevalve member communicating with the enlarged portion of the passage, andflow channel portions on the valve member providing communicationbetween the chamber and said enlarged portion of the passage when saidflow channel portions are positioned in the cylindrical portion of thevalve casing passage for dispensing of fiowable materials through thevalve member.

2. A dispensing valve structure for containers comprising, an elongatevalve casing adapted to be positioned with one end in communication witha chamber adapted to contain flowable materials, said valve casinghaving a through passage extending longitudinally thereof, said valvecasing having a portion adjacent said one end defining a cylindricalopening forming a portion of said passage, said passage having anenlarged portion extending from said cylindrical opening toward theother end of said valve casing, said valve casing at said other endextending inwardly relative to said passage to provide a reduced areathereof, an elongate valve member having a shank extending through saidpassage, a head on said valve member exteriorly of and adjacent saidother end of the valve casing, said valve member having a bore openingfrom said head and extending longitudinally through the shank andterminating in a closed end spaced from the end of the shank oppositefrom the head, a port in said shank below the upper end of the valvecasing and opening into said bore, said shank having a reduced portionadjacent the end opposite from the head with a cylindrical portionbetween the port and said opposite end being of a size to engage in thecylindrical portion of the passage and form a resilient compression sealwith the body or valve casing, stop means on the valve member and thevalve casing below the upper end of said valve casing and adapted to beengaged in response to relative longitudinal movement thereof to limitsaid movement, said port in the valve member communicating with theenlarged portion of the passage, flow channel portions on the valvemember providing communication between the chamber and said enlargedportion of the passage when said flow channel pertions are positioned inthe cylindrical portion of the valve casing passage for dispensing oftlowable materials through the valve member, and means adjacent theother end portion of the valve casing having engagement with the shankto provide a compression seal therewith.

3. A dispensing valve structure for containers comprising, an elongatevalve casing adapted to be positioned with one end in communication witha chamber adapted to contain materials to be dispensed, said valvecasing having a through passage extending longitudinally thereof, saidvalve casing having a portion adjacent said one end defining acylindrical opening forming a portion of said passage, said passagehaving an enlarged portion extending from said cylindrical openingtoward the other end of said valve casing, said valve casing at saidother end extending inwardly relative to said passage to provide areduced area thereof, an elongate valve member having a shank extendingthrough said passage, a head on said valve member exteriorly of andadjacent said other end of the valve casing, said valve member having abore opening from said head and extending longitudinally through theshank and terminating in a closed end spaced from the end of the shankopposite from the head, a port in said" shank below the upper end of thevalve casing and opening into said bore, said shank having a reducedportion adjacent the end opposite from the head with a cylindricalportion between the port and said opposite end being of a size to engagein the cylindrical portion of the passage and form a resilientcompression seal with the body or valve casing, stop means on the valvemember and valve casing below the upper end of said valve casing andadapted to be engaged in response to relative longitudinal movementthereof to limit said movement, said port in the valve membercommunicating with the enlarged portion of the passage, flow channelportions on the valve member providing communication between the chamberand said enlarged portion of the passage when said iiow channel portionsare positioned in the cylindrical portion of the valve casing passagefor dispensing flowable materials through the valve member, and helicalmeans on said valve member shank and valve casing operative to effectlongitudinal movement of the valve member in response to relativerotation of said valve member and valve casing.

4. The combustion of a contm'ner and a sealing and dispensing closurecomprising,'a hollow body defining a container and having an integralelongate valve casing thereon, said valve casing having a throughpassage with an inner end communicating with the interior of the hollowbody, said valve casing having an integral resilient wall defining areduced cylindrical section of said passage adjacent said inner end, avalve member having a shank extending through said passage and movableas a whole in one direction to an open flow position and in the otherdirection to a closed position, spaced stop means on each of the shankand said valve casing with one on each being outside said valve casingand the other of each located below the upper end of the valve casing,said stop means being engageable in response to movement of the valvemember to open and closed postions for limiting movement of said valvemember in the respective directions in the valve casing, said valvemember shank having a lateral opening located below the upper end of thevalve casing, said shank having a closed end below the lateral openingand a bore with which said lateral opening communicates extending fromsaid closed end of the shank outwardly through the shank to a dischargeopening that is exteriorly of said valve casing, said lateral opening inthe valve member being between the stop means thereon and the inner endof the valve casing, said valve casing passage and valve member havingcooperating portions which with the lateral opening and bore form achannel for dispensing contents of the hollow body through saiddischarge opening when the valve member is in open position, and acylindrical portion on said shank sealingly engaging the resilient walldefining the reduced cylindrical portion of the passage and closing saidchannel when the valve member is in closed position.

5. A closure means for containers comprising, a valve casing molded ofresilient synthetic resin with a through passage with an inner endadapted for communication with a container and an outer end, said valvecasing having a wall defining a section of said passage of reducedtransverse area adjacent said inner end thereof, a onepiece valve memberhaving a shank extending into said outer end of said passage and throughsaid passage with said valve member being movable as a whole, a radiallyoutwardly extending stop means on the shank below the upper outer end ofthe valve casing and engageable with said valve casing in one positionof the valve member for limiting movement of the valve member from thevalve casing, said valve member shank having a port located below thestop means thereon communicating with the valve casing passage outwardlyof the section of reduced transverse area, said shank having a closedend below the port and a bore with which said port comunicates extendingfrom said closed end outwardly lb through the shank and openingexteriorly of the valve casing, said port in the valve member beingbetween the radially outwardly extending stop means on the valve memberand the inner end of the valve casing, said valve casing passage andvalve member having cooperating portions which with said port and boreform a dispensing channel extending from said container to the exteriorof the valve casing when the valve member is in open postion, and aportion on said shank in the reduced portion of the passage and being ofa size and shape for resilient sealing engagement with said wall andclosing said channel when the valve member is in closed posi tion.

6. The combination of a container and a sealing and dispensing closurecomprising, a hollow body having an elongate valve casing of flexiblematerial, said valve casing having a through passage with an inner endcommunicating with the interior of the hollow body and an outer endexteriorly thereof, said valve casing having a wall portion defining areduced section of said passage adjacent said inner end, a onepiecevalve member having a shank extending into said outer end of saidpassage and through said passage and movable as a whole therein, a headon one end of said shank, a radially outwardly extending stop meansintegral with the shank and located below the upper end of the valvecasing and engageable with said valve casing in one position of thevalve member for limiting movement of the valve member from the valvecasing in the direction of the head, said valve member shank having alateral opening located below the stop means thereon, said shank havinga closed end below the lateral opening and a bore extending therefromthrough the shank to a discharge opening exteriorly of said valvecasing, said lateral opening in the valve member being between theradially outwardly extending stop means on the valve member and theinner end of the valve casing, said valve casing passage and valvemember having cooperating portions which with said lateral opening andbore form a channel for dispensing contents of the hollow body throughsaid discharge opening when the valve member is inopen position, and aportion on said shank having resilient sealing engagement with the wallportion defining the reduced portion of the passage and closing saidchannel when the valve member is in closed position.

7. The combination of a container and a sealing and dispensing closurecomprising, a hollow container body having an integral elongate valvecasing thereon, said valve casing having a through passage with an innerend communicating with the interior of the hollow body and an outer endexteriorly thereof, said valve casing having a wall defining a reducedcylindrical section of said passage adjacent said inner end, a one-piecevalve member having a shank extending into said outer end of saidpassage and through said passage and movable as a whole therein, a headon one end of said shank and adapted .to engage the outer end of thevalve casing in one position of said valve member, a radially outwardlyextending stop means on the shank below the upper end of the valvecasing and engaging with said valve casing in another position of thevalve member for limiting movement of the valve member from the valvecasing in the direction of the head, said valve member shank having alateral opening located below the stop means thereon, said shank havinga closed end below the lateral opening and a bore extending therefromthrough said shank and head to a discharge opening, said lateral openingin the valve member being between the radially outwardly extending stopmeans on the valve member and the inner end of the valve casing, saidvalve casing passage and valve member having cooperating portions whichwith said lateral opening and bore form a channel for dispensingcontents or" the hollow body through said discharge opening when thevalve member is in open position, and a cylindrical portion on saidshank having resili- 11 ent sealing engagement with the reducedcylindrical portion of the passage and closing said channel when thevalve member is in closed position.

8. The combination of a container and a sealing and dispensing closurecomprising, a hollow body defining a flowable material containingchamber, an elongate valve casing integral with said body and extendingoutwardly of said chamber, said valve casing having a through passagelongitudinally therein with an inner end communicating with said chamberand an outer endexteriorly thereof, said passage having an enlargedportion spaced from the ends thereof and a reduced portion between theenlarged portion and the chamber, a one-piece valve member extendingthrough said passage and movable as a whole therein to chamber openingand closing positions, said valve member having a dispensing passagetherein open at one end thereof exteriorly of the elongate valve casingand having a lateral port spaced from the other end of the valve memberand communicating with the chamber in open position of the valve member,a collar on said valve member between the communicating port and thevalve member and the outer end of said valve casing, said collar andvalve casing having cooperating shoulder means below the outer end ofsaid valve casing and engageable in one position of the valve member forlimiting movement of the valve member in one direction in the valvecasing, said lateral port being between the collar and the inner end ofthe valve casing and within said valve casing when the collar shouldermeans is engaging the shoulder means of the valve casing, and a portionof the valve member between said other end thereof and said portsealingly engaging the reduced portion of the passage when the valvemember is in closed position, one of said valve casing and valve memberbeing of resilient material to form a pressure-tight sealing engagementin the latter reduced portion thereof.

9. The combination of a container and sealing and dispensing closurecomprising, a hollow body defining a chamber for containing material tobe dispensed, an elongate valve casing on said body and extendingoutwardly of said chamber, said valve casing having a through passagelongitudinally therein with an inner end communicating with said chamberand an outer end exteriorly thereof, said passage having an enlargedportion spaced from the ends thereof and a reduced cylindrical portionbetween the enlarged portion and the chamber, the valve member extendingthrough said passage and movable as a,

whole therein to chamber opening and closing positions, said valvemember having a dispensing passage therein open at one end thereofexteriorly of the elongate valve casing and having an opening communiating with the chamber in open position of the valve member, said valvemember having a collar thereon between the communicating opening of thevalve member and the outer end of said valve casing, said collarsealingly engaging the valve casing in the enlarged portion of thepassage, therein outwardly relative to said communicating opening of thevalve,

member, said collar and valve casing having cooperating shoulder meansbelow the outer end of the valve casing and engageable in one positionof the valve member for limiting movement of said valve member in onedirection in the valve casing, said communicating opening in the valvemember being between the collar and the inner end of the valve casingand within said valve casing when the.

collar shoulder is engaging the collar in the valve casing, and acylindrical portion on the valve member sealingly engaging in thecylindrical portion of the passage when the valve member is in closedposition, said valve casing and valve member being of resilient materialto form a pressure-tight sealing engagement in the cylindrical portionsthereof.

References Cited in the file of this patent UNITED STATES PATENTS

5. A CLOSURE MEANS FOR CONTAINERS COMPRISING, A VALVE CASING MOLDED OFRESILIENT SYNTHETIC RESIN WITH A THROUGH PASSAGE WITH AN INNER ENDADAPTED FOR COMMUNICATION WITH A CONTAINER AND AN OUTER END, SAID VALVECASING HAVING A WALL DEFINING A SECTION OF SAID PASSAGE OF REDUCEDTRANSVERSE AREA ADJACENT SAID INNER END THEREOF, A ONEPIECE VALVE MEMBERHAVING A SHANK EXTENDING INTO SAID OUTER END OF SAID PASSAGE AND THROUGHSAID PASSAGE WITH SAID VALVE MEMBER BEING MOVABLE AS A WHOLE, A RADIALLYOUTWARDLY EXTENDING STOP MEANS ON THE SHANK BELOW THE UPPER OUTER END OFTHE VALVE CASING AND ENGAGEABLE WITH SAID VALVE CASING IN ONE POSITIONOF THE VALVE MEMBER FOR LIMITING MOVEMENT OF THE VALVE MEMBER FROM THEVALVE CASING, SAID VALVE MEMBER SHANK HAVING A PORT LOCATED BELOW THESTOP MEANS THEREON COMMUNICATING WITH THE VALVE CASING PASSAGE OUTWARDLYOF THE SECTION OF REDUCED TRANSVERSE AREA, SAID SHANK HAVING A CLOSEDEND BELOW THE PORT AND A BORE WITH WHICH SAID PORT COMMUNICATESEXTENDING FROM SAID CLOSED END OUTWARDLY THROUGH THE SHANK AND OPENINGEXTERIORLY OF THE VALVE CASING, SAID PORT IN THE VALVE MEMBER BEINGBETWEEN THE RADIALLY OUTWARDLY EXTENDING STOP MEANS ON THE VALVE MEMBERAND THE INNER END OF THE VALVE CASING, SAID VALVE CASING PASSAGE ANDVALVE MEMBER HAVING COOPERATING PORTIONS WHICH WITH SAID PORT AND BOREFORM A DISPENSING CHANNEL EXTENDING FROM SAID CONTAINER TO THE EXTERIOROF THE VALVE CASING WHEN THE VALVE MEMBER IS IN OPEN POSITION, AND APORTION ON SAID SHANK IN THE REDUCED PORTION OF THE PASSAGE AND BEING OFA SIZE AND SHAPE FOR RESILIENT SEALING ENGAGEMENT WITH SAID WALL ANDCLOSING SAID CHANNEL WHEN THE VALVE MEMBER IS IN CLOSED POSITION.